What Molar Ratio of Acetic Acid to Sodium Acetate Is

question 62

Multiple Choice

What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a pH of 4.88 at 25°C? K_a for HC₂H₃O₂ is 1.8 × 10^-5.

• A) 0.73
• B) 1.4
• C) 0.52
• D) 2.0
• E) 2.7

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